US4727307A - Control apparatus for vehicular generator - Google Patents
Control apparatus for vehicular generator Download PDFInfo
- Publication number
- US4727307A US4727307A US06/885,830 US88583086A US4727307A US 4727307 A US4727307 A US 4727307A US 88583086 A US88583086 A US 88583086A US 4727307 A US4727307 A US 4727307A
- Authority
- US
- United States
- Prior art keywords
- generator
- output
- temperature
- cold
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
Definitions
- This invention relates to a control apparatus for a vehicular generator for use in vehicles, for example, automobiles.
- FIG. 1 shows a prior-art control apparatus of the specified type, in which a generator 1 is driven by an engine not shown and is constructed of an armature coil 101 and a field coil 102.
- a rectifier 2 subjects the A-C outputs of the generator 1 to full-wave rectification, and has output ends 201, 202 and 203.
- the output end 201 delivers a main output
- the output end 202 serves for exciting the field coil 102 and for detecting the voltage of a voltage regulator 3 to be described below
- the output end 203 serves for grounding.
- the voltage regulator 3 regulates the output voltage of the generator 1 to a predetermined value, and is constructed of components to be mentioned below.
- Numerals 301 and 302 designate voltage dividing resistors which divide the output voltage of the output end 202 of the rectifier 2
- nemeral 303 designates a Zener diode which detects a potential resulting from the voltage division of the voltage dividing resistors 301 and 302 and which is enabled when the potential has reached a predetermined value
- numeral 304 designates a transistor which is turned ⁇ on ⁇ when the Zener diode 303 is enabled and which controls the on/off action of a transistor 305 to be described below.
- the transistor 305 interrupts and controls a field current which flows through the field coil 102 of the generator 1.
- the voltage regulator 3 further includes the base resistor 306 of the transistor 305, and a diode 307 which is connected in parallel with the field coil 102 of the generator 1 and which absorbs the interruption surge of this field coil.
- Numeral 4 indicates batteries carried on the vehicle, numeral 5 the various electric loads of the vehicle, numeral 6 a key switch, and numeral 7 a resistor for the initial excitation of the field coil 102 of the generator 1.
- FIG. 2 shows the curves C of the output current of the generator 1 and the curves T of the driving torque thereof versus the rotational speed (revolutions per minute) of the generator 1 under the full-load condition thereof as based on the prior-art apparatus. In this figure, broken lines correspond to a cold condition, and solid lines a hot condition.
- the Zener diode 303 is disabled to turn ⁇ off ⁇ the transistor 304.
- the turn-on and -off of the transistor 304 controls the ⁇ off ⁇ and ⁇ on ⁇ states of the transistor 305, respectively, and thus interrupts the current of the field coil 102 of the generator 1 so as to regulate the output voltage of the generator 1 to the predetermined value.
- the voltage regulator 3 repeats the above operation to control the state the generator 1 is in, and the generator 1 supplies electric power from the output end 201 of the rectifier 2 to the batteries 4 and various electric loads 5 of the vehicle with the regulated output voltage.
- the characteristic curves of the output currents and the driving torques of the generator 1 of the prior-art apparatus controlled as described above, under the cold and hot conditions become as shown in FIG. 2. More specifically, as the generator 1 shifts from the cold state thereof immediately after beginning the power generation, to the hot state thereof in consequence of the self-heating thereof and the rise of an ambient temperature, the output current lowers gradually as seen from the characteristic curve of the cold condition to that of the hot condition as illustrated in FIG. 2.
- the nominal output of the generator 1 is determined by the hot condition characteristic, and the cold condition characteristic is merely an allowance for guaranteeing the hot condition characteristic. Ideally, it is considered best that the characteristics under the cold condition and the hot condition be substantially in agreement.
- the driving torque of the generator 1 lowers gradually from the cold condition characteristic to the hot condition characteristic as the output current lowers.
- the driving torque exhibits a peculiar curve which has a peak indicated by a point A in FIG. 2 at a comparatively low speed of rotation.
- the driving torque of the generator 1 acts as a load on the engine of the vehicle. Especially in the vicinity of the aforementioned peak at the point A, the engine is at the low speed of rotation and the output torque thereof is comparatively small, so that the driving torque of the generator 1 acts as a very high load.
- the prior-art control apparatus for the vehicular generator Since the prior-art control apparatus for the vehicular generator is constructed and operated as described above, the difference between the cold-condition driving torque and the hot-condition driving torque acts as a surplus load on the engine. In particular, immediately after the starting of the engine, the torque generated by the engine is unstable, and the cold-condition driving torque of the generator becomes a large value. Therefore, the degree of influence of the generator driving torque is high to incur the problems that the rotation of the engine is not smooth and becomes unstable, and that the quantity of fuel consumed by the engine becomes large. Further, that the above degree of influence increases at a cryogenic temperature.
- This invention has been made in order to eliminate the problems as mentioned above, and has for its object to provide a control apparatus for a vehicular generator which can suppress the cold-condition driving torque of the generator without decreasing the effective output thereof.
- a first aspect of performance of this invention consists in that the temperature of the generator is detected and that the field current of the generator is controlled in accordance with the detected output signal, whereby the output current of the generator under the cold condition thereof can be suppressed to restrain the driving torque thereof.
- the rotational speed of the generator is detected, and the field current of the generator is controlled according to the detected output signals.
- FIG. 1 is a circuit diagram showing a prior-art control apparatus for a vehicular generator
- FIG. 2 is a graph showing the characteristic curves of the generator based on the prior-art control apparatus
- FIG. 3 is a circuit diagram showing a control apparatus for a vehicular generator according to an embodiment of this invention.
- FIG. 4 is a graph showing the characteristic curves of the generator based on the embodiment
- FIG. 5 is a circuit diagram showing a control apparatus according to another embodiment of this invention.
- FIG. 6 is a graph showing the characteristic curves of a generator in FIG. 5.
- FIG. 7 is a circuit diagram showing still another embodiment of a control apparatus according to this invention.
- FIG. 8 is a timing chart of operations versus the rotational speed of a generator in FIG. 7, and
- FIG. 9 is a graph showing an example of the characteristic curves of the generator in FIG. 7.
- FIG. 3 the same symbols as in FIG. 1 indicate portions identical to those of the prior-art example.
- Symbol A 1 denotes a power source.
- a base resistor 308 has one end connected to the power source A 1 and has the other end connected to the base of the transistor 304 through a reverse current preventing diode 310.
- a reverse current preventing diode 309 is connected between a Zener diode 303 and the base of the transistor 304.
- Symbols 3A denotes a switching control power source portion which is constructed of the power source A 1 , the base resistor 308 and the reverse current preventing diode 310 mentioned above.
- Shown at numeral 8 is a constant duty factor oscillator which is well known and which is constructed of components to be described below.
- Numerals 801 and 802 designate inverters, numeral 803 a capacitor, and numerals 804 and 805 resistors which construct a bidirectional charge-and-discharge circuit along with the capacitor 803.
- Numerals 806 and 807 indicate reverse current preventing diodes, numeral 808 the input protection resistor of the inverter 802, and numeral 809 a reverse current preventing diode.
- An example of switching control means is constructed of the switching control power source portion 3A and the constant duty factor oscillator 8 mentioned above.
- Numeral 9 indicates a temperature detector which is an example of temperature level decision means, and which is constructed of components to be described below.
- Symbols A 2 denotes a power source, and numeral 901 a comparator.
- Voltage dividing resistors 902 and 903 are connected in series, with the node of the series connection connected to the (-) input of the comparator 901, and divide the voltage of the power source A 2 , thereby to afford the reference voltage of the comparator 901.
- a biasing resistor 904 for a temperature detecting device 10 has one end connected to the power source A 2 , and has the other end connected to the temperature detecting device 10 as well as the (+) input of the comparator 901.
- the temperature detecting device 10 utilizes the negative temperature coefficient of the forward voltage of a diode. It is mounted on a heat generating part within a generator 1, or on the control apparatus installed on the generator 1, including a voltage regulator 3, the switching control power source portion 3A, the constant duty factor oscillator 8 and the temperature detector 9.
- the anode side of the reverse current preventing diode 809 and the output side of the comparator 901 (which is of the open collector type) are connected to the node between the base resistor 308 and the reverse current preventing diode 310.
- FIG. 4 shows the curves C of the output currents and the curves T of the driving torques of the generator 1 versus the rotational speed (r. p. m.) of the same under the full load condition thereof as based on this invention.
- Broken lines indicate the characteristic curves in a cold condition, and solid lines those in a hot condition.
- the constant duty factor oscillator 8 utilizes a known astable multivibrator which is based on an inverter, and the operation of which shall be explained assuming that the Zener diode 303 of the voltage regulator 3 is nonconductive and that the output of the comparator 901 of the temperature detector 9 is at an "H" (high) level.
- the output of the inverter 801 is at the "H” level
- the output of the inverter 802 is at an "L” (low) level
- the potential of and, in turn, the input potential of the inverter 802 lowers gradually.
- the input of the inverter 802 becomes an "L" level detection potential, whereupon the inverter 802 delivers the "H” level and the inverter 801 delivers the "L” level.
- a forward charge circuit opposite in the direction to the initial circuit is formed in which current flows through a path extending along the output end of the inverter 802 ⁇ the resistor 805 ⁇ the reverse current preventing diode 807 ⁇ the capacitor 803 ⁇ the output end of the inverter 801.
- the potential of the point a is lowered even further to ensure the "L" level of the input of the inverter 802 and to stabilize the operation. Subsequently, the potential of the point a is gradually raised by the forward charge circuit stated above. At last, the input of the inverter 802 becomes an "H" level detection potential, whereupon the inverter 802 delivers the "L” level and the inverter 801 delivers the "H” level and returns into the initial state. At the same time that the inverter 801 is inverted into the initial state, the forward charge circuit of the capacitor 803 is inverted into its initial state. As a result, the potential of the point a is raised even further to ensure the "H" level of the input of the inverter 802 and to stabilize the operation.
- the period of time during which the output of the inverter 801 is at the "H” level is determined by the capacitor 803 and the resistor 804, while the period of time during which it is at the "L” level is determined by the capacitor 803 and the resistor 805. Accordingly, the periods of time of the "H” level and the “L” level are different values, and the proportion of the period of time of the "H” level to one cycle, that is, the duty factor, is set at a certain fixed value. Simultaneously with the closure of the key switch 6, the above operations are repeated.
- the transistor 304 is supplied with a base current from the power source A 1 and through the base resistor 308 as well as the reverse current preventing diode 310 and becomes the conductive state to render the transistor 305 nonconductive.
- the base resistor 308 is grounded to the output end of the inverter 801 through the reverse current preventing diode 809, so that the transistor 304 becomes nonconductive to render the transistor 305 conductive.
- the transistor 304 is forcibly on/off-controlled irrespective of the output voltage of the generator 1 by the output of the fixed duty factor oscillator 8. That is, the field current of the field coil 102 of the generator 1 is interrupted by the on/off control of the transistor 305, and it is forcibly limited. Meanwhile, since the output of the generator 1 is determined by a field magnetomotive force based on the field coil 102, the limitation of the field current flowing through the field coil 102 results in limiting the output of the generator 1. Besides, in a case where the electric loads 5 of a vehicle are small relative to the limited output of the generator 1, the generator 1 has a margin for its ability of power generation, and the output voltage thereof rises.
- the Zener diode 303 When this output voltage exceeds the predetermined regulation voltage of the voltage regulator 3, namely, the Zener voltage of the Zener diode 303, the Zener diode 303 is turned ⁇ on ⁇ . Then, even when the output of the fixed duty factor oscillator 8 is at the "L" level, the transistor 04 is rendered conductive and the transistor 305 is rendered nonconductive so as to prevent the field current from flowing through the field coil 102, whereby the output voltage of the generator 1 is regulated to a predetermined value.
- the temperature detecting device 10 delivers a forward voltage generated in such a way that a slight forward current is caused to flow by utilizing the negative temperature coefficient of the forward voltage of a diode as stated before. That is, the device 10 utilizes the property that the output voltage thereof becomes high at a low temperature and becomes low at a high temperature.
- the temperature detector 9 is a level detector which detects the level of a temperature detection signal from the temperature detecting device 10 by the use of the comparator 901.
- the comparator 901 compares the output voltage of the temperature detecting device 10, using as a reference voltage comprising a potential which is obtained by dividing the voltage of the power source A 2 by means of the resistors 902 and 903 with the voltage of the temperature detecting device 10. More specifically, when the temperature detecting device 10 is at a low temperature and provides an output voltage higher than the reference voltage, that is, the generator 1 is under a cold condition, the comparator 901 delivers the "H" level. To the contrary, when the output voltage of the temperature detecting device 10 is lower than the reference voltage in case of a high temperature, that is, the generator 1 is under a hot condition, the comparator 901 delivers the "L" level.
- the cold-condition output current or cold-condition driving torque of the generator 1 has been suppressed to bring the characteristic of the cold condition into substantial agreement with the characteristic of the hot condition.
- this is not restrictive, and it is also possible to set, for example, a characteristic having values lower than the characteristic of the hot condition or a characteristic having values between the characteristic of the cold condition and that of the hot condition.
- FIG. 5 shows another embodiment of this invention.
- a thermistor 810 is added to the fixed duty factor oscillator 8 in FIG. 3 so as to form a variable duty factor oscillator 8A whose output changes depending upon temperatures.
- the thermistor 810 is mounted on the control apparatus along with the temperature detecting device 10, and has the property that the resistance value thereof lowers with the temperature rise of the generator 1.
- the period of time during which the output of the inverter 801 is at the "H” level is determined by the charging time constant of the capacitor 803, thermistor 810 and resistor 804, while the period of time during which it is at the "L” level is determined by the charging time constant of the capacitor 803 and resistor 805, and the periods of time of the "H” and “L” levels become different values.
- the proportion of the "H” level to one cycle, namely, the duty factor is set at a certain fixed value. Further, the resistance of the thermistor 810 decreases with the temperature rise of the generator.
- the oscillator 8A operates so that the period of time of the "H" level of the inverter 801 may be gradually shortened, namely, that the duty factor may be gradually decreased. Simultaneously with the closure of the key switch 6, the above operations are repeated.
- the period of time of the "H" output level of the inverter 801 is gradually shortened, and the period of time of the turn-on of the transistor 304 of the voltage regulator 3, in other words, the period of time of the turn-off of the transistor 305 is shortened. Therefore, the duty factor of the field coil 102 becomes high, a mean voltage to be applied to the field coil 102 rises, and the lowering of the field current is suppressed. As a result, the output current of the generator is suppressed from lowering and is corrected.
- the generator 1 has a margin for its ability of power generation, and the output voltage thereof rises.
- the Zener diode 303 is turned ⁇ on ⁇ .
- the transistor 304 is rendered conductive, and the output voltage of the generator 1 is regulated to the predetermined value.
- a dot-and-dash line M indicates the output current characteristic under the half hot condition.
- FIG. 7 shows still another embodiment of this invention, in which an r.p.m. detector 11 is added to the embodiment of FIG. 3.
- the r. p. m. detector 11 is constructed of components to be described below.
- An F-V (frequency-to-voltage) converter 111 receives the A-C output of the armature coil 101 of the generator 1 and converts it into a voltage value proportional to an A-C frequency.
- a first detection circuit 112 and a second detection circuit 113 receive the output voltage of the F-V converter 111, and detect whether or not the rotational speed of the generator 1 has reached respective r.p.m. levels as predetermined.
- a NOR gate 114 (of the open collector type) receives the output of the first detection circuit 112 and the second detection circuit 113.
- the anode side of the reverse current preventing diode 809 which is the output side of the constant duty factor oscillator 8, the output side of the comparator 901 which is the output side of the temperature detector 9, and the output side of the NOR gate 114 which is the output side of the r.p.m. detector 11 are connected in common to the node between the base resistor 308 and the reverse current preventing diode 310.
- FIG. 8 is an operation timing chart of the r.p.m. detector 11 in FIG. 7.
- the axis of ordinates represents the output level
- the axis of abscissas represents the rotational speed of the generator 1.
- the upper stage of the chart illustrates the outputs of both the detection circuits 112 and 113, that is, a solid line indicates the output of the first detection circuit 112 while a coarse broken line indicates the output of the second detection circuit 113.
- the lower stage illustrates the output of the NOR gate 114.
- FIG. 9 shows the curves C of the output currents of the generator 1 and the curves T of the driving torques thereof versus the rotational speed of the generator 1 under the full-load condition thereof as based on this invention.
- Broken lines correspond to the cold condition of the generator 1, and solid lines the hot condition thereof.
- the F-V converter 111 receives the A-C output of the armature coil 101 of the generator 1 and delivers a voltage proportional to the frequency of the A-C waveform, namely, the rotational speed of the generator 1.
- the first detection circuit 112 and the second detection circuit 113 receive the output voltage of the F-V converter 111, and their outputs are respectively inverted when the received voltages have reached corresponding fixed values, that is, the rotational speed of the generator 1 has reached corresponding fixed r.p.m. values.
- the first detection circuit 112 provides the "H” level for the rotational speed of the generator 1 from 0 (r.p.m.) to N 1 (r.p.m.) and provides the "L” level for the speed above N 1 (r.p.m.)
- the second detection circuit 113 provides the "L” level for the rotational speed of the generator 1 from 0 (r.p.m.) to N 2 (r.p.m.) and provides the "H” level for the speed above N 2 (r.p.m.).
- the NOR gate 114 provides the "H" level in only the section in which both the outputs of the first detection circuit 112 and the second detection circuit 113 are at the "L" level, namely, the section in which the rotational speed of the generator 1 is between N 1 (r.p.m.) and N 2 (r.p.m.) inclusive, and it provides the "L” level in any other section. That is, likewise to the output operation of the temperature detector 9, when the output of the r.p.m.
- the on/off action of the transistor 304 of the voltage regulator 3 depends upon the state of the Zener diode 303 and the oscillation of the fixed duty factor oscillator 8, and when the output of the detector 11 is at the "L" level, the on/off action of the transistor 304 depends upon only the state of the Zener diode 303 as in the operation of the voltage regulator 3 in the prior art.
- the on/off action of the transistor 304 depends upon only the state of the Zener diode 303.
- the output current of the generator 1 can be suppressed. Curves expressive of such characteristics are shown in FIG. 9. As apparent from the curves, the peak of the cold-condition driving torque can be suppressed and cut in the way that the output current within the predetermined rotational speed range (from N 1 r.p.m. to N 2 r.p.m.) under the cold condition is suppressed as described above. Moreover, apart from the peak of the driving torque, especially in a high-speed revolution region, the cold-condition output current is not suppressed, so that this current can be effectively utilized.
- the output current has been suppressed only in the cold condition within the range within which the rotational speed of the generator 1 is from N 1 (r.p.m.) to N 2 (r.p.m.).
- this is not restrictive, but by way of example the output current of the generator 1 may well be similarly suppressed only in the cold condition within a range within which the rotational speed of the generator 1 is from 0 (r.p.m.) to N 2 (r.p.m.).
- the practicable example of arrangement has been shown in FIG. 7.
- the embodiment need not be restricted thereto, and any means may be adopted as long as similar effects are attained.
- the control apparatus is so constructed that the output current of the generator is suppressed when the temperature of the generator is below a predetermined point and the rotational speed range of the generator in which the driving torque thereof exhibits a peak, so as to restrain the peak of the cold-condition driving torque. Accordingly, the effective output of the generator is not spoilt, the cold-condition output current can be effectively utilized in the high-speed region, and the load on the engine can be reduced. Therefore, the rotation of the engine is stabilized, and the quantity of fuel consumption of the engine can be saved.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Charge By Means Of Generators (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60160864A JPS6223398A (en) | 1985-07-19 | 1985-07-19 | Controller of vehicle generator |
JP60-160864 | 1985-07-19 | ||
JP60-161197 | 1985-07-23 | ||
JP60-161198 | 1985-07-23 | ||
JP60161198A JPS6223400A (en) | 1985-07-23 | 1985-07-23 | Controller of vehicle generator |
JP60161197A JP2661613B2 (en) | 1985-07-23 | 1985-07-23 | Control device for vehicle generator |
Publications (1)
Publication Number | Publication Date |
---|---|
US4727307A true US4727307A (en) | 1988-02-23 |
Family
ID=27321758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/885,830 Expired - Lifetime US4727307A (en) | 1985-07-19 | 1986-07-15 | Control apparatus for vehicular generator |
Country Status (3)
Country | Link |
---|---|
US (1) | US4727307A (en) |
EP (1) | EP0210819B1 (en) |
DE (1) | DE3686853T2 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4937514A (en) * | 1988-01-20 | 1990-06-26 | Mitsubishi Denki K.K. | AC generator control apparatus for vehicles |
US4990846A (en) * | 1990-03-26 | 1991-02-05 | Delco Electronics Corporation | Temperature compensated voltage reference circuit |
US5099189A (en) * | 1986-10-03 | 1992-03-24 | Mitsubishi Denki Kabushiki Kaisha | Alternating current generator for vehicle |
US20030042875A1 (en) * | 2001-08-30 | 2003-03-06 | Denso Corporation | A.C. generator control apparatus and method having abnormality information output function |
US20030042876A1 (en) * | 2001-09-06 | 2003-03-06 | Nissan Motor Co., Ltd. | Protection of a generator without measuring temperature |
US20050162135A1 (en) * | 2004-01-26 | 2005-07-28 | Wetherill Associates, Inc. | Alternator system with temperature protected voltage regulator |
US20080164852A1 (en) * | 2007-01-05 | 2008-07-10 | Denso Corporation | Power-generator control apparatus for addressing occurrence of voltage transient |
US20090121689A1 (en) * | 2007-11-09 | 2009-05-14 | Denso Corporation | Vehicle-use power generation control device |
FR2966992A1 (en) * | 2010-11-03 | 2012-05-04 | Peugeot Citroen Automobiles Sa | Method for protecting accessories of frontage of motor vehicle, involves controlling torque provided by alternator activated by crankshaft, and controlling excitation set point of alternator to limit torque to predetermined maximum value |
CN103107757A (en) * | 2013-01-24 | 2013-05-15 | 北京天诚同创电气有限公司 | Method for heating wind driven generator by using full-power converter |
CN103516275A (en) * | 2012-06-15 | 2014-01-15 | 三菱电机株式会社 | Control device and control method for a vehicle AC generator |
US20150303852A1 (en) * | 2012-09-24 | 2015-10-22 | Sany Heavy Machinery Limited | The engine-driven generator rotational speed control method |
US20170019046A1 (en) * | 2014-07-11 | 2017-01-19 | Mitsubishi Electric Corporation | Power generation control device of vehicle alternating current generator |
US9584055B2 (en) | 2012-07-17 | 2017-02-28 | Caterpillar (Ni) Limited | Voltage regulator system for a genset |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843163C2 (en) * | 1988-12-22 | 1998-09-24 | Bosch Gmbh Robert | Device for regulating a vehicle three-phase generator |
DE4102335A1 (en) * | 1990-06-21 | 1992-01-02 | Bosch Gmbh Robert | DEVICE AND METHOD FOR CONTROLLING A GENERATOR |
EP0631375B1 (en) * | 1993-06-25 | 1997-04-09 | STMicroelectronics S.r.l. | Output stage alternatively employing a MOS device or a bipolar device depending on the supply voltage and regulator for an alternator |
DE19608992B4 (en) * | 1996-03-08 | 2007-12-06 | Robert Bosch Gmbh | Generator system for an internal combustion engine |
JP3865157B2 (en) * | 1996-06-05 | 2007-01-10 | 株式会社デンソー | AC generator for vehicles |
JPH10229698A (en) * | 1997-02-17 | 1998-08-25 | Mitsubishi Electric Corp | Controller for generator for motor vehicle |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4368417A (en) * | 1979-12-29 | 1983-01-11 | Honda Giken Kogyo Kabushiki Kaisha | Output voltage-adjusting device for vehicle-mounted generators |
US4385270A (en) * | 1982-05-12 | 1983-05-24 | Motorola Inc. | Temperature limited voltage regulator circuit |
JPS5887432A (en) * | 1981-11-20 | 1983-05-25 | Teijin Ltd | Color management system |
US4388587A (en) * | 1981-12-17 | 1983-06-14 | Motorola, Inc. | Fixed frequency voltage regulator |
JPS5963699A (en) * | 1982-10-04 | 1984-04-11 | 日本電信電話株式会社 | Film forming device |
US4470003A (en) * | 1983-04-11 | 1984-09-04 | Ford Motor Company | Voltage regulator with temperature responsive circuitry for reducing alternator output current |
US4612493A (en) * | 1983-06-20 | 1986-09-16 | Mitsubishi Denki Kabushik Kaisha | Control device for charging generator |
US4629968A (en) * | 1985-08-23 | 1986-12-16 | General Motors Corporation | Alternator load control system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2042529A1 (en) * | 1969-11-14 | 1971-05-19 | Nippon Denso Co | Voltage regulator for a generator that can be driven with rapidly changing speeds |
JPS5484210A (en) * | 1977-12-16 | 1979-07-05 | Hitachi Ltd | Voltage regulator for vehicle |
US4146264A (en) * | 1978-03-02 | 1979-03-27 | Louis Michael Glick | Load control for wind-driven electric generators |
DE3041200A1 (en) * | 1980-11-03 | 1982-06-03 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD AND REGULATOR FOR LIMITING THE GAS GAS FLOW IN BATTERIES, ESPECIALLY IN MOTOR VEHICLES |
FR2530892B1 (en) * | 1982-03-09 | 1986-10-24 | Mitsubishi Electric Corp | DEVICE FOR CONTROLLING A CHARGE GENERATOR |
JPS6135126A (en) * | 1984-07-24 | 1986-02-19 | 株式会社日立製作所 | Controller of generator |
-
1986
- 1986-07-15 US US06/885,830 patent/US4727307A/en not_active Expired - Lifetime
- 1986-07-21 EP EP86305595A patent/EP0210819B1/en not_active Expired - Lifetime
- 1986-07-21 DE DE8686305595T patent/DE3686853T2/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4368417A (en) * | 1979-12-29 | 1983-01-11 | Honda Giken Kogyo Kabushiki Kaisha | Output voltage-adjusting device for vehicle-mounted generators |
JPS5887432A (en) * | 1981-11-20 | 1983-05-25 | Teijin Ltd | Color management system |
US4388587A (en) * | 1981-12-17 | 1983-06-14 | Motorola, Inc. | Fixed frequency voltage regulator |
US4385270A (en) * | 1982-05-12 | 1983-05-24 | Motorola Inc. | Temperature limited voltage regulator circuit |
JPS5963699A (en) * | 1982-10-04 | 1984-04-11 | 日本電信電話株式会社 | Film forming device |
US4470003A (en) * | 1983-04-11 | 1984-09-04 | Ford Motor Company | Voltage regulator with temperature responsive circuitry for reducing alternator output current |
US4612493A (en) * | 1983-06-20 | 1986-09-16 | Mitsubishi Denki Kabushik Kaisha | Control device for charging generator |
US4629968A (en) * | 1985-08-23 | 1986-12-16 | General Motors Corporation | Alternator load control system |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099189A (en) * | 1986-10-03 | 1992-03-24 | Mitsubishi Denki Kabushiki Kaisha | Alternating current generator for vehicle |
US4937514A (en) * | 1988-01-20 | 1990-06-26 | Mitsubishi Denki K.K. | AC generator control apparatus for vehicles |
US4990846A (en) * | 1990-03-26 | 1991-02-05 | Delco Electronics Corporation | Temperature compensated voltage reference circuit |
US20030042875A1 (en) * | 2001-08-30 | 2003-03-06 | Denso Corporation | A.C. generator control apparatus and method having abnormality information output function |
US6812675B2 (en) * | 2001-08-30 | 2004-11-02 | Denso Corporation | A.C. generator control apparatus and method having abnormality information output function |
US20030042876A1 (en) * | 2001-09-06 | 2003-03-06 | Nissan Motor Co., Ltd. | Protection of a generator without measuring temperature |
US7071658B2 (en) * | 2001-09-06 | 2006-07-04 | Nissan Motor Co., Ltd. | Protection of a generator without measuring temperature |
US20050162135A1 (en) * | 2004-01-26 | 2005-07-28 | Wetherill Associates, Inc. | Alternator system with temperature protected voltage regulator |
US6982545B2 (en) * | 2004-01-26 | 2006-01-03 | Wetherill Associates, Inc. | Alternator system with temperature protected voltage regulator |
US7705568B2 (en) * | 2007-01-05 | 2010-04-27 | Denso Corporation | Power-generator control apparatus for addressing occurrence of voltage transient |
US20080164852A1 (en) * | 2007-01-05 | 2008-07-10 | Denso Corporation | Power-generator control apparatus for addressing occurrence of voltage transient |
US20090121689A1 (en) * | 2007-11-09 | 2009-05-14 | Denso Corporation | Vehicle-use power generation control device |
US8040112B2 (en) * | 2007-11-09 | 2011-10-18 | Denso Corporation | Vehicle-use power generation control device |
FR2966992A1 (en) * | 2010-11-03 | 2012-05-04 | Peugeot Citroen Automobiles Sa | Method for protecting accessories of frontage of motor vehicle, involves controlling torque provided by alternator activated by crankshaft, and controlling excitation set point of alternator to limit torque to predetermined maximum value |
CN103516275A (en) * | 2012-06-15 | 2014-01-15 | 三菱电机株式会社 | Control device and control method for a vehicle AC generator |
CN103516275B (en) * | 2012-06-15 | 2016-08-03 | 三菱电机株式会社 | The control device of vehicle-mounted dlternator and control method |
US9584055B2 (en) | 2012-07-17 | 2017-02-28 | Caterpillar (Ni) Limited | Voltage regulator system for a genset |
US20150303852A1 (en) * | 2012-09-24 | 2015-10-22 | Sany Heavy Machinery Limited | The engine-driven generator rotational speed control method |
CN103107757A (en) * | 2013-01-24 | 2013-05-15 | 北京天诚同创电气有限公司 | Method for heating wind driven generator by using full-power converter |
CN103107757B (en) * | 2013-01-24 | 2015-05-13 | 北京天诚同创电气有限公司 | Method for heating wind driven generator by using full-power converter |
US20170019046A1 (en) * | 2014-07-11 | 2017-01-19 | Mitsubishi Electric Corporation | Power generation control device of vehicle alternating current generator |
US9899943B2 (en) * | 2014-07-11 | 2018-02-20 | Mitsubishi Electric Corporation | Power generation control device of vehicle alternating current generator |
Also Published As
Publication number | Publication date |
---|---|
EP0210819B1 (en) | 1992-09-30 |
EP0210819A2 (en) | 1987-02-04 |
DE3686853T2 (en) | 1993-05-06 |
EP0210819A3 (en) | 1987-10-07 |
DE3686853D1 (en) | 1992-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4727307A (en) | Control apparatus for vehicular generator | |
US5144220A (en) | Vehicle ac generator control system | |
US5198744A (en) | Apparatus and method for controlling the output power of a generator to maintain generator temperature below an allowed limiting value | |
EP0709953B1 (en) | Control system for AC generator | |
US6700353B2 (en) | Battery charging system and vehicle generator control system | |
US7602152B2 (en) | Vehicle-use power generation control apparatus | |
US6215284B1 (en) | Control device of A.C. generator for vehicle | |
US4477766A (en) | Apparatus for controlling electric generation for vehicles | |
EP1050945B1 (en) | Controller of ac generator for vehicle | |
JP4480583B2 (en) | Control device for vehicle alternator | |
JPH0638720B2 (en) | Control device for vehicle generator | |
US4937514A (en) | AC generator control apparatus for vehicles | |
JPH0937597A (en) | Generator for vehicle | |
JP3513083B2 (en) | Alternator control device | |
JP4193348B2 (en) | Vehicle power generation control device | |
KR100294094B1 (en) | Vehicle generator control device | |
US6603289B2 (en) | Vehicle alternator control device and method | |
JPH089567A (en) | Output control and output controller of ac generator for vehicle | |
JP2661613B2 (en) | Control device for vehicle generator | |
JPS6223400A (en) | Controller of vehicle generator | |
JPH0421440B2 (en) | ||
KR100343761B1 (en) | Controller for ac generators of vehicles | |
JPH03173324A (en) | Ac generator controller for vehicle | |
JPH0528905Y2 (en) | ||
KR920005674Y1 (en) | Ac generator for cargo |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA, 2-3, MARUNOUCHI Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:KANEYUKI, KAZUTOSHI;IWATANI, SHIRO;KOMURASAKI, KEIICHI;AND OTHERS;REEL/FRAME:004581/0200 Effective date: 19860704 Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KANEYUKI, KAZUTOSHI;IWATANI, SHIRO;KOMURASAKI, KEIICHI;AND OTHERS;REEL/FRAME:004581/0200 Effective date: 19860704 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |